diff options
| -rw-r--r-- | resources/utilities/ich9deblob/ich9deblob.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/resources/utilities/ich9deblob/ich9deblob.c b/resources/utilities/ich9deblob/ich9deblob.c index 216c8d0c..e2801e15 100644 --- a/resources/utilities/ich9deblob/ich9deblob.c +++ b/resources/utilities/ich9deblob/ich9deblob.c @@ -64,6 +64,7 @@ int structSizesIncorrect(struct DESCRIPTORREGIONRECORD descriptorDummy, struct G int systemIsBigEndian(); int structBitfieldWrongOrder(); int structMembersWrongOrder(); +struct GBEREGIONRECORD_8K deblobbedGbeStructFromFactory(struct GBEREGIONRECORD_8K factoryGbeStruct8k); int main(int argc, char *argv[]) { @@ -191,12 +192,8 @@ int main(int argc, char *argv[]) // ---------------------------------------------------------------------------------------------------------------- - // Correct the main gbe region. By default, the X200 (as shipped from Lenovo) comes - // with a broken main gbe region, where the backup gbe region is used instead. Modify - // the descriptor so that the main region is usable. - - deblobbedGbeStruct8k.backup.checkSum = gbeGetChecksumFrom4kStruct(deblobbedGbeStruct8k.backup, 0xBABA); - memcpy(&deblobbedGbeStruct8k.main, &deblobbedGbeStruct8k.backup, GBEREGIONSIZE>>1); + // Modify the Gbe descriptor (see function for details) + deblobbedGbeStruct8k = deblobbedGbeStructFromFactory(factoryGbeStruct8k); // ---------------------------------------------------------------------------------------------------------------- @@ -390,6 +387,21 @@ int structBitfieldWrongOrder() { return 0; } +struct GBEREGIONRECORD_8K deblobbedGbeStructFromFactory(struct GBEREGIONRECORD_8K factoryGbeStruct8k) +{ + // Correct the main gbe region. By default, the X200 (as shipped from Lenovo) comes + // with a broken main gbe region, where the backup gbe region is used instead. Modify + // the descriptor so that the main region is usable. + + struct GBEREGIONRECORD_8K deblobbedGbeStruct8k; + memcpy(&deblobbedGbeStruct8k, &factoryGbeStruct8k, GBEREGIONSIZE); + + deblobbedGbeStruct8k.backup.checkSum = gbeGetChecksumFrom4kStruct(deblobbedGbeStruct8k.backup, 0xBABA); + memcpy(&deblobbedGbeStruct8k.main, &deblobbedGbeStruct8k.backup, GBEREGIONSIZE>>1); + + return deblobbedGbeStruct8k; +} + // Modify the flash descriptor, to remove the ME/AMT, and disable all other regions // Only Flash Descriptor, Gbe and BIOS regions (BIOS region fills romSize-12k) are left. // Tested on ThinkPad X200 and X200S. X200T and other GM45 targets may also work. |